| Most common failures | No# failures |
|---|
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 20 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 17 |
| Headlamp aim out of alignment | 16 |
| Steering headbearing has excessive free play |2.2.2| | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 11 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Registration plate issues | 7 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 4 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Horn not working |1.7.3a| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 4 |
| Exhaust has part of the system missing |7.1.1a| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 3 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Front Lower Steering headbearing has excessive free play |2.2.2| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Centre Front Horn not working |1.7.3a| | 2 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 2 |
| Centre Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp aim not tested |1.6| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Front Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Stop lamp not working FROM LEFT LEAVER |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies on left leaver |1.3.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Brake cable guide defective and affecting operation |1.1.15 |d|| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Front All position lamps do not illuminate immediately when switched on no dip beam |1.1.3a| | 1 |
| Front Direction indicators flashing less than 60 times a minute battery no good / indicators / front / rear to slow |1.5.1c| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies switch faulty |1.3.1a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Throttle operating incorrectly slight sticking |6.2.7 |a| |i|| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Drive belt guard insecure |6.2.1c| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Brake lever has insufficient reserve travel both |1.1.2 |a|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Stop lamp not working when front brake is applied |4.3.1 |a| |ii|| | 1 |
| Throttle operating incorrectly sticking |6.2.7 |a| |i|| | 1 |
| Centre Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Nearside Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Central Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Horn is not a constant note |1.7.3c| | 1 |
| Rear Upper Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp dipped beam affected by the operation of another lamp also when steering lock to lock check headlamp goes out |1.2.2c| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Riders seat insecure seat will not lock down |6.2.5 |a| |ii|| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies Not working from front brake control. |1.3.1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Brake lever pivot excessively tight |1.1.1 |a|| | 1 |
| Nearside Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Exhaust excessively deteriorated leaking |7.1.1a| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Horn not working not fitted |7.7 |a| |ii|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure Centre stand insecure and liable to detach or fowl road (6.1.1 (b) (i)) | 1 |
| Nearside Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Central Riders seat insecure seat catch missing (6.2.5 (a) (ii)) | 1 |
| Horn not working horn does not work (7.7 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Offside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Headlamp aim not tested insecure (4.1.2 (b)) | 1 |
| Rear Brake grabbing severely not realising smoothly (1.2.1 (c)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated very bad needs urgent replacment (5.1.3 (b) (i)) | 1 |
| Headlamp light intensity severely reduced pattern deteriated (4.1.4 (a)) | 1 |
| Throttle operating incorrectly engine reving to fast on tickover (6.2.7 (a) (i)) | 1 |
| Offside Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |